MR Fingerprinting for Rapid Quantitative Abdominal Imaging.

Purpose: To develop a magnetic resonance (MR) "fingerprinting" technique for quantitative abdominal imaging.

Materials And Methods: This HIPAA-compliant study had institutional review board approval, and informed consent was obtained from all subjects. To achieve accurate quantification in the presence of marked B0 and B1 field inhomogeneities, the MR fingerprinting framework was extended by using a two-dimensional fast imaging with steady-state free precession, or FISP, acquisition and a Bloch-Siegert B1 mapping method.

Device localization and dynamic scan plane selection using a wireless magnetic resonance imaging detector array.

Purpose: A prototype wireless guidance device using single sideband amplitude modulation (SSB) is presented for a 1.5T magnetic resonance imaging system.

Methods: The device contained three fiducial markers each mounted to an independent receiver coil equipped with wireless SSB technology.

Identification and mitigation of interference sources present in SSB-based wireless MRI receiver arrays.

Purpose: Single sideband amplitude modulation (SSB) is an appealing platform for highly parallel wireless MRI detector arrays because the spacing between channels is ideally limited only by the MRI signal bandwidth. However this assumes that no other sources of interference are present outside that bandwidth. This work investigates the practical interference between multiple SSB-encoded MRI signals.